Bolt Guides

When can you eat salad after gastric sleeve surgery? Find out the recommended timeline, safest ingredients, foods to avoid, and expert NHS-aligned tips for reintroducing raw foods comfortably.

Weight Loss

min read

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

Use a gastric sleeve weight loss calculator to estimate your results after sleeve gastrectomy. Learn how these tools work, NHS eligibility criteria, and expert recovery planning advice.

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GLP-1 Brands

Read all on GLP-1 brands

Wegovy

Answer all your questions about Wegovy treatments for weight loss.

Read Wegovy guides

Mounjaro

Answer all your questions about Mounjaro treatments for weight loss.

Read Mounjaro guides

GLP-1 Brands

min read

How Long Does Rybelsus Stay in Your System?

How long does Rybelsus stay in your system? Discover the elimination timeline, factors affecting clearance, and what happens when you stop taking this type 2 diabetes medication.

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What Is Ozempic Personality? Mood Changes and Semaglutide

GLP-1 Brands

min read

What Is Ozempic Personality? Mood Changes and Semaglutide

What is Ozempic personality? Explore reported mood and behavioural changes with semaglutide, the scientific evidence, and when to speak to your GP about side effects whilst taking Ozempic for type 2 diabetes.

What Does Trulicity Do to Your Body? Effects Explained

GLP-1 Brands

min read

What Does Trulicity Do to Your Body? Effects Explained

Discover what Trulicity does to your body, including how this GLP-1 receptor agonist lowers blood sugar, affects weight and appetite, and impacts long-term health in type 2 diabetes management.

Saxenda & Blood Donation: UK Eligibility Guide

GLP-1 Brands

min read

Saxenda & Blood Donation: UK Eligibility Guide

Taking Saxenda and want to give blood? Learn UK eligibility rules from NHSBT, what liraglutide means for donors, and when to seek advice before donating.

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Men’s Health

Testosterone

Answer all your questions about testosterone.

Read testosterone guides

Erectile dysfunction

Answer all your questions about erectile dysfunction.

Read erectile dysfunction guides

Trans Women & Erectile Function: UK Guide

Erectile Dysfunction

min read

Trans Women & Erectile Function: UK Guide

Learn how hormone therapy affects erections in trans women, whether Viagra is suitable, and what support is available through the NHS.

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Testosterone

min read

How Often Should Testosterone Be Checked When Using Testogel?

Find out how often testosterone levels should be checked when using Testogel. Learn about UK monitoring schedules, blood tests, safety checks, and signs your dose may need adjusting under NHS guidelines.

Where to Put Testogel for Women: Safe Application Sites

Testosterone

min read

Where to Put Testogel for Women: Safe Application Sites

Discover where to put Testogel safely if you're a woman prescribed this off-label testosterone therapy. Learn the recommended application sites, step-by-step technique, and essential safety precautions to optimise treatment and minimise risks.

Testosterone

min read

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Can testosterone cause gynaecomastia? Learn how testosterone converts to oestrogen, who is most at risk, how to spot symptoms, and what NHS treatment options are available.

Does Trulicity Cause Fatigue? Side Effects Explained

GLP-1 Brands

min read

Does Trulicity Cause Fatigue? Side Effects Explained

Does Trulicity cause fatigue? Discover how dulaglutide may affect energy levels, the difference between medication side effects and blood glucose changes, and when to seek medical advice for tiredness whilst managing type 2 diabetes.

How Long Does Trulicity Stay in Your System?

GLP-1 Brands

min read

How Long Does Trulicity Stay in Your System?

How long does Trulicity stay in your system? Discover the half-life, elimination timeline, and factors affecting how long this type 2 diabetes medication remains active in your body, with expert UK guidance.

Can Fatty Liver Increase Triglycerides? Understanding the Link

Weight Loss

min read

Can Fatty Liver Increase Triglycerides? Understanding the Link

Discover how fatty liver disease increases triglycerides through impaired lipid metabolism and insulin resistance. Learn about the mechanisms linking liver fat to abnormal blood lipids, plus evidence-based management strategies including lifestyle changes and when to seek medical advice for optimal liver and heart health.

Can You Take Allergy Medication With Doxycycline? UK Guide

Supplements

min read

Can You Take Allergy Medication With Doxycycline? UK Guide

Can you take allergy medication with doxycycline? Find out which antihistamines, decongestants, and nasal sprays are safe to use alongside doxycycline, plus key interactions to avoid — UK guidance from NHS, NICE, and MHRA.

Weight Loss

min read

Target Calorie Deficit for Weight Loss: NHS and NICE Guidance

Target calorie deficit for weight loss explained: discover what NHS and NICE recommend, how to calculate your personal deficit, and the risks of cutting calories too aggressively.

GLP-1 First Week: What to Expect and How to Manage

Weight Loss

min read

GLP-1 First Week: What to Expect and How to Manage

Discover what to expect during your first week on GLP-1 medications like Ozempic, Wegovy, or Saxenda. Learn about common side effects, appetite changes, practical tips for managing nausea, and when to seek medical advice. Essential UK guidance for starting GLP-1 therapy.

Testosterone

min read

Do Elderly Men Need Treatment for Low Testosterone Levels?

Do elderly men need treatment for low testosterone levels? Discover when testosterone replacement therapy is appropriate, potential benefits and risks, diagnostic criteria, and alternative approaches for managing age-related testosterone decline in older men.

Does Victoza Work? Efficacy for Type 2 Diabetes

GLP-1 Brands

min read

Does Victoza Work? Efficacy for Type 2 Diabetes

Does Victoza work for type 2 diabetes? Discover how this GLP-1 receptor agonist lowers blood glucose, the clinical evidence behind its effectiveness, how long it takes to work, and factors that influence treatment outcomes in UK practice.

Fish Oil Pills: Benefits, Risks and Evidence

Supplements

min read

Fish Oil Pills: Benefits, Risks and Evidence

What do fish oil pills actually do? Explore the evidence on omega-3 capsules, potential side effects, dosage, and whether supplements beat dietary sources.

Hair Loss

min read

Does Mould Cause Hair Loss? Fungal Infections, Evidence & Treatment

Does mould cause hair loss? Learn what the clinical evidence says, how fungal scalp infections like tinea capitis are treated, when to see a GP, and NHS-backed advice on reducing mould at home.

What Are the Disadvantages of Sildenafil? Risks and Side Effects

Erectile Dysfunction

min read

What Are the Disadvantages of Sildenafil? Risks and Side Effects

Discover the disadvantages of sildenafil including common side effects, serious cardiovascular risks, drug interactions with nitrates, and important contraindications. Essential safety information for patients considering this erectile dysfunction treatment.

Can Retatrutide Make You Dizzy? Side Effects Explained

GLP-1 Brands

min read

Can Retatrutide Make You Dizzy? Side Effects Explained

Can retatrutide make you dizzy? Learn what clinical trial data reveal about dizziness as a side effect, why it occurs, how to manage it, and when to seek medical advice in the UK.

How Long Can You Store Retatrutide? UK Safety Guidance

GLP-1 Brands

min read

How Long Can You Store Retatrutide? UK Safety Guidance

How long can you store retatrutide? As an unlicensed investigational medicine, retatrutide has no MHRA-approved storage guidance. Learn what UK regulations say and how to handle it safely.

Weight Loss

min read

Is Alli a Good Weight Loss Pill? UK Evidence and Safety Guide

Is Alli a good weight loss pill? Discover how orlistat 60 mg works, what the clinical evidence shows, who it suits, side effects, drug interactions, and UK safety guidance.

Does Berberine Make You Sleepy? UK Evidence and Safety Guidance

Supplements

min read

Does Berberine Make You Sleepy? UK Evidence and Safety Guidance

Does berberine make you sleepy? Discover what clinical evidence reveals about berberine and drowsiness, potential causes of fatigue, safe dosing guidance, and when to seek medical advice in the UK.

Bolt Guides

Featured

What Is RMR? Resting Metabolic Rate Explained

Weight loss

What Is RMR? Resting Metabolic Rate Explained

When Can I Eat Salad After Gastric Sleeve Surgery?

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

GLP-1 Brands

Wegovy

Mounjaro

How Long Does Rybelsus Stay in Your System?

What Is Ozempic Personality? Mood Changes and Semaglutide

What Does Trulicity Do to Your Body? Effects Explained

Saxenda & Blood Donation: UK Eligibility Guide

Men’s Health

Testosterone

Erectile dysfunction

Trans Women & Erectile Function: UK Guide

How Often Should Testosterone Be Checked When Using Testogel?

Where to Put Testogel for Women: Safe Application Sites

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Browse all

Does Trulicity Cause Fatigue? Side Effects Explained

How Long Does Trulicity Stay in Your System?

Can Fatty Liver Increase Triglycerides? Understanding the Link

Can You Take Allergy Medication With Doxycycline? UK Guide

Target Calorie Deficit for Weight Loss: NHS and NICE Guidance

GLP-1 First Week: What to Expect and How to Manage

Do Elderly Men Need Treatment for Low Testosterone Levels?

Does Victoza Work? Efficacy for Type 2 Diabetes

Fish Oil Pills: Benefits, Risks and Evidence

Does Mould Cause Hair Loss? Fungal Infections, Evidence & Treatment

What Are the Disadvantages of Sildenafil? Risks and Side Effects

Can Retatrutide Make You Dizzy? Side Effects Explained

How Long Can You Store Retatrutide? UK Safety Guidance

Is Alli a Good Weight Loss Pill? UK Evidence and Safety Guide

Does Berberine Make You Sleepy? UK Evidence and Safety Guidance

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